retinoschisis

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retinoschisis

 [ret″ĭ-nos´kĭ-sis]
splitting of the retina, occurring in the nerve fiber layer (in juvenile form), or in the external plexiform layer (in adult form).

ret·i·nos·chi·sis

(ret'i-nos'ki-sis),
Degenerative splitting of the retina, with cyst formation between the two layers.
[retino- + G. schisis, division]

retinoschisis

/ret·i·nos·chi·sis/ (ret″ĭ-nos´kĭ-sis) splitting of the retina, occurring in the nerve fiber layer (juvenile form), or in the external plexiform layer (adult form) .

retinoschisis

[ret′i·nos′ki·sis]
Etymology: L, rete, net + schisis, cleavage
splitting of the retina. In the juvenile form the splitting occurs in the nerve fiber layer (stratum opticum), and in the adult form in the outer plexiform layer. The disorder is usually more benign and slowly progressive than retinal detachment. Compare retinal detachment.

ret·i·nos·chi·sis

(ret'i-nos'ki-sis)
Degenerative splitting of the retina, with cyst formation between the two layers.
[retino- + G. schisis, division]

retinoschisis

Local splitting of the retina into two layers with an intervening space.

retinoschisis 

A vitreoretinal degeneration characterized by splitting of the retina into two layers. It occurs either as a hereditary disease or as an acquired condition (70% of these patients are hyperopic). The X-linked hereditary condition (called juvenile retinoschisis) affects only males and usually involves the macula with loss of central vision. The congenital condition is characterized by a splitting of the nerve fibre layer from the retina whereas the acquired form, which is the most common, results in a splitting at the outer plexiform layer. The latter usually begins in the temporal periphery appearing as a coalescence of microcystoid degenerations with a smooth transparent elevation and associated with an absolute scotoma. The condition may spread to involve the entire peripheral fundus. Holes in the two layers are common and are a sign of progression. The inner layer contains blood vessels and sometimes has small whitish flakes on it, which are called 'snowflakes'.

retinoschisis

splitting of the retina.
References in periodicals archive ?
Si veda anche Maspero, "Unita e relazione: la schesis nella dottrina trinitaria di Gregorio di Nissa", 301-326.
E proprio nella discussione sulla realta dei relativi che il termine schesis assume grande rilevanza.
Questi ha il merito di mostrare la relazione tra la schesis e i pros ti: i relativi non sarebbero realta meramente logiche, ma avrebbero un fondamento nell'essere, pur accidentale, grazie proprio alla schesis che conferisce loro esistenza (12).
L'equivalenza di Troie tirai e schesis e attestata anche da Gregorio di Nazianzo e sembra appartenere a una sorta di <<grammatica>> teologica non esclusiva di Gregorio di Nissa (40).